Trucks battery won't stay charged over night..


Asked by Jan 22, 2016 at 09:19 PM about the 1999 Dodge Ram 1500 4 Dr Laramie SLT 4WD Extended Cab SB

Question type: Maintenance & Repair

My 99 Dodge Ram 1500 5.9 V8 4x4 won't stay
charged when left for more than at least 12 hours
over night. Had AAA mechanic come out and put 2
new batteries in it and test; starter, battery,
alternator which all is good. He checked a couple of
things like all fuses in box and my stereo to see if
power was being pulled but nothing.. I've tried
driving it after new battery was put into it and it
starts and runs. When I turn it off you can hear a
buzzing or humming sound coming from around the
engine compartment but can't seem to find where
noise is coming from.. When I did drive it to work I
noticed that and when I got off the battery was
completely dead it wouldn't even jump start.
Mechanic said could be a short in the wiring
somewhere but that could be anywhere and take a
shop time and a lot of money to find and fix..Can
anyone help if any ideas what exactly it could be if it
could be a simple fix, please???

1 Answer


Before you can do any testing the battery needs to be fully recharged, so disconnect 1 battery cable and recharge the battery, next make sure everything is turned off, then just reconnect for a few seconds, then disconnect a cable and put a test light in between the battery post and cable terminal end, if the light turns on then you have a major battery draw, so the first thing to electrically disconnect is the alternator, if the light goes out then you have found your problem, if not then start removing the fuses one at a time, noting where each fuse goes, keep removing fuses until the light goes out, then find out what is on that fuse and trace down the problem componet or wiring and repair or replace, then start putting the fuses back in one at a time just make sure you didn't miss anything and finally reconnect the alternator, if the light stays off then your battery drain is fixed. Note: on some vehicles. They have a parasitic draw this will make the test light glow very dim that light is normal as long as it is just a glow. HTH

Your Answer

Add photo

Related Questions

  • truck wont stay running 84 answers

    I have a 2001 dodge 1500 pickup. The truck fires right up but will not stay running unless I keep my foot on the gas. As soon as I let off the throttle it dies instantly without sputtering. Gauges rea...

    2001 Dodge Ram 1500


    Maintenance & Repair

  • 1999 ram 1500 sport wont hold a charge 1 answer

    my battery died one night so i cleaned all conections made shur they were all tight and had the battery and altanator chked and they chked out good and if i let the truck sit for about 12 hrs the ba...

    1999 Dodge Ram 1500 4 Dr ST 4WD Extended Cab SB


    Maintenance & Repair

  • Truck won't idle 4 answers

    Just started last night... My 2002 Dodge Ram stalled and will only fire up when you step on the throttle... The minute you let off the throttle it stalls again... It has a new Camshaft sensor in it...

    2002 Dodge Ram 1500 SLT SB


    Maintenance & Repair

  • I have a 2015 2500 6.4 engine that won't start. I have lights but won't start 24 answers

    Truck won't start, turn key and have lights but engine won't start!

    Dodge Ram 1500


    Maintenance & Repair

  • Car keeps killing battery 1 answer

    My dodge intrepid 2.7 keeps killing the battery, I have replaced the alternator, battery, and tcm fuse.. it seems to be when the car starts to warm up. When it starts the radio starts to flicker ...

    2003 Dodge Intrepid SE


    Maintenance & Repair

Search Dodge Ram 1500 Questions

Dodge Ram 1500 Experts

#1 Dan Connell
Dan Connell
Reputation 5,280
#2 pudgybear
Reputation 5,000
#3 dandyoun
Reputation 4,670
View All

Related Models For Sale

Used Ford F-150"
3,272 Great Deals out of 216,647 listings starting at $1,500
Used Chevrolet Silverado 1500"
2,453 Great Deals out of 144,774 listings starting at $1,995
Used Dodge Ram 2500"
154 Great Deals out of 5,743 listings starting at $2,289
Used GMC Sierra 1500"
1,028 Great Deals out of 56,923 listings starting at $2,300
Used Toyota Tundra"
618 Great Deals out of 26,773 listings starting at $2,500
Used Toyota Tacoma"
625 Great Deals out of 30,504 listings starting at $2,850
Used Dodge Dakota"
161 Great Deals out of 4,797 listings starting at $900
Used Ford F-250 Super Duty"
443 Great Deals out of 42,987 listings starting at $2,250
Used Dodge Ram 3500"
104 Great Deals out of 2,511 listings starting at $4,995
Used Ford Mustang"
739 Great Deals out of 41,066 listings starting at $900
Used Jeep Wrangler"
463 Great Deals out of 16,413 listings starting at $3,400

Used Cars For Sale

2010 Dodge Ram 1500 For Sale
85 Great Deals out of 1,563 listings starting at $4,695
2009 Dodge Ram 1500 For Sale
57 Great Deals out of 1,274 listings starting at $5,999
2008 Dodge Ram 1500 For Sale
87 Great Deals out of 1,736 listings starting at $4,490
2007 Dodge Ram 1500 For Sale
75 Great Deals out of 1,700 listings starting at $3,595
2006 Dodge Ram 1500 For Sale
60 Great Deals out of 1,586 listings starting at $1,795